关键词: 空气质量, 工业化, 城市化, 结构方程模型, 城市

Abstract: Based on the structural equation modeling (SEM), this paper analyzes the impact path of industrialization and urbanization on urban air quality using data of 113 key environmental protection cities in China in 2014. The results show that there are significant differences between the impact paths and modes of urbanization and urbanization on urban air quality. Industrialization has a direct, positive and linear impact on air quality; while urbanization has an indirect impact. Urban population proportion in municipal district has a negative influence on air quality, while the influence of population density is "inverted U" with the confidence interval of turning point (363, 1232) person / sq. km, where 64 sample cities lie in. The innovation of this paper is to introduce SEM into the research field of air quality influencing factor for the first time. In the empirical analysis, the different path and mode of industrialization and urbanization impact on urban air quality are revealed. The paper suggests that increase of urban population proportion and decrease of secondary industry share will help improve the air quality. From the perspective of improving air quality, centralized urbanization path should be preferred in China.

Key words: Air Quality, Industrialization, Urbanization, Structural Equation Modeling, Urban